Primarily Petroliana Shop Talk Forums Shop Talk Petroliana Forums Showcase and Stories, Petroliana COTM April 07 Pennzoil

This my double sided porcelain curved WIND SPINNER [most were used atop the old stations].

and a few qts loaned to local museum.

Piece in center has 4 glass tubes w/ a piston that will flow thru the differant weights of oil at a differant rate to show the viscosity of oil in tube, when rotated.
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